Meeting of Associate Professor Barbora Vlková, Professor Peter Celec and PhD student Andrej Feješ at the Clinical Research Unit of the 5th Internal Medicine Clinic of the Faculty of Medicine of Comenius University at the National Institute of Endocrinology and Diabetes in Ľubochňa, where research is underway focused on endogenous deoxyribonuclease activity and the biology of extracellular DNA.